PASADENA, Calif. – NBC entertainment chairman Robert Greenblatt said he's relieved his network is “out from under” the Bill Cosby scandal, but eyebrows were raised when Greenblatt talked about timing.

NBC had been in the early stages of developing a show with Cosby set to play a role as a family patriarch, but Greenblatt said Cosby's involvement was halted when the scandal reached “critical mass.” Greenblatt admitted he had heard rumours about Cosby in previous years and he knew there had been some settlements.

So Greenblatt was pushed on what he meant by “critical mass” when it comes to allegations of sexual misconduct. One reporter at the Television Critics Association tour asked, “What is critical mass? Fifteen (women) yes, two no?”